3103 Eger (1982 BB)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3541833241 ± 2.00e+00
Semi-major axis (a)1.4039472551 AU ± 3.00e+00
Inclination (i)20.93071887° ± 4.00e+00
Long. of Asc. Node (Ω)129.73173744° ± 5.00e+00
Arg. of Perihelion (ω)254.10494834° ± 6.00e+00
Mean Anomaly (M)181.12184640° ± 8.33e-05
Mean Motion (n)0.5924969077°/day ± 1.90e+00
Perihelion dist (q)0.90669255 AU ± 3.41e+00
Aphelion dist (Q)1.90120196 AU ± 4.94e+00
Orbital Period1.66351296 yr ± 5.33e+00
NGA Modelr2
A24.86502687e-06 AU/d²
Physical Parameters
H (abs. magnitude)15.30
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.341″
Uncertainty0
Orbit TypeApollo
MOID0.078006 AU
Observations Used7901
Radar Obs Used4
Gaia Obs Used108
Oppositions14
Arc Total1982-2017
First Observation Used1982-02-02
Last Observation Used2026-04-05
Observations (11858)
Date Type RA Dec Mag Band Observatory
2022-02-10 03:33:52 s 1 -185825.17 4 +25628.243 6800.0 C57
2022-02-10 03:43:52 S 10 49 01.543 +25 20 14.03 V C57
2022-02-10 03:43:52 s 1 -185522.99 2 +24778.951 5920.0 C57
2022-02-10 03:53:52 S 10 49 00.756 +25 20 29.72 V C57
2022-02-10 03:53:52 s 1 -185217.69 8 +23929.243 1210.0 C57
2022-02-10 04:03:52 S 10 48 59.890 +25 20 44.66 V C57
2022-02-10 04:03:52 s 1 -184909.27 7 +23079.132 2590.0 C57
2022-02-10 04:13:52 S 10 48 59.030 +25 21 00.72 V C57
2022-02-10 04:13:52 s 1 -184597.71 3 +22228.629 10.0 C57
2022-02-10 04:23:52 S 10 48 58.140 +25 21 15.95 V C57
2022-02-10 04:23:52 s 1 -184282.99 1 +21377.746 3390.0 C57
2022-02-10 04:33:52 S 10 48 57.298 +25 21 31.61 V C57
2022-02-10 04:33:52 s 1 -183965.09 6 +20526.496 2680.0 C57
2022-02-10 04:43:52 S 10 48 56.405 +25 21 46.87 V C57
2022-02-10 04:43:52 s 1 -183644.01 2 +19674.890 7820.0 C57
2022-02-10 04:53:52 S 10 48 55.603 +25 22 02.32 V C57
2022-02-10 04:53:52 s 1 -183319.72 3 +18822.942 8730.0 C57
2022-02-10 05:03:52 S 10 48 54.773 +25 22 18.30 V C57
2022-02-10 05:03:52 s 1 -182992.21 4 +17970.663 5360.0 C57
2022-02-10 05:13:52 S 10 48 53.921 +25 22 32.99 V C57
2022-02-10 05:13:52 s 1 -182661.46 9 +17118.066 7640.0 C57
2022-02-10 05:23:52 S 10 48 53.110 +25 22 49.22 V C57
2022-02-10 05:23:52 s 1 -182327.47 2 +16265.166 5500.0 C57
2022-02-10 05:33:52 S 10 48 52.159 +25 23 03.84 V C57
2022-02-10 05:33:52 s 1 -181990.20 8 +15411.974 8880.0 C57
2022-02-10 05:43:52 S 10 48 51.319 +25 23 20.29 V C57
2022-02-10 05:43:52 s 1 -181649.65 9 +14558.505 7720.0 C57
2022-02-10 05:53:52 S 10 48 50.424 +25 23 35.56 V C57
2022-02-10 05:53:52 s 1 -181305.81 1 +13704.772 1950.0 C57
2022-02-10 06:03:52 S 10 48 49.538 +25 23 50.60 V C57
2022-02-10 06:03:52 s 1 -180958.64 7 +12850.789 1510.0 C57
2022-02-10 06:13:52 S 10 48 48.691 +25 24 05.83 V C57
2022-02-10 06:13:52 s 1 -180608.15 1 +11996.569 6320.0 C57
2022-02-10 06:23:52 S 10 48 47.858 +25 24 21.10 V C57
2022-02-10 06:23:52 s 1 -180254.30 6 +11142.128 6330.0 C57
2022-02-10 06:33:52 S 10 48 47.066 +25 24 36.43 V C57
2022-02-10 06:33:52 s 1 -179897.09 7 +10287.479 1460.0 C57
2022-02-10 06:43:52 S 10 48 46.130 +25 24 51.98 V C57
2022-02-10 06:43:52 s 1 -179536.50 7 + 9432.638 1650.0 C57
2022-02-10 06:53:52 S 10 48 45.278 +25 25 07.21 V C57
2022-02-10 06:53:52 s 1 -179172.51 9 + 8577.618 6840.0 C57
2022-02-10 07:03:52 S 10 48 44.441 +25 25 23.27 V C57
2022-02-10 07:03:52 s 1 -178805.11 7 + 7722.436 6950.0 C57
2022-02-10 07:13:52 S 10 48 43.534 +25 25 38.14 V C57
2022-02-10 07:13:52 s 1 -178434.28 6 + 6867.106 1930.0 C57
2022-02-10 07:23:52 S 10 48 42.706 +25 25 53.98 V C57
2022-02-10 07:23:52 s 1 -178060.00 6 + 6011.643 1690.0 C57
2022-02-10 07:33:52 S 10 48 41.899 +25 26 08.16 V C57
2022-02-10 07:33:52 s 1 -177682.26 4 + 5156.065 6190.0 C57
2022-02-10 07:43:52 S 10 48 41.052 +25 26 24.14 V C57
Radar Observations (8)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
1986-07-18 07:50:00 202602 6 Hz 2380 -1 -1
1986-07-18.326389 20260200 600 Hz 2380 251 251
1996-07-29 09:10:00 469654 5 Hz 8510 -14 -14
1996-07-29 13:00:00 133166634 10 us 8510 -14 -14
1996-07-29.381944 46965400 500 Hz 8510 253 253
1996-07-29.541667 13316663400 10000 us 8510 253 253
1996-07-30 10:50:00 410012.2 5 Hz 8510 -14 -14
1996-07-30.451389 41001220 500 Hz 8510 253 253
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)